Preface - Siemens SIMATIC S7-300 Hardware And Installation Manual

Preface

Purpose of this manual
To get you started, this manual contains the information you will need to plan,
assemble, wire up, address and commission a S7-300.
You will then get to know the tools you can use to diagnose and eliminate errors in
hardware and software.
Basic knowledge required
To understand this manual you will require a general knowledge of automation
technology, backed up by a knowledge of the STEP 7 basic software. You may find
it useful to read the Programming with STEP 7 V5.1 manual first.
Scope of the Manual
This manual applies to S7-300 PLCs, assembled with one of the CPUs described
in the CPU Data Reference Manual.
Approvals
The SIMATIC S7-300 product series has the following approvals:
• Underwriters Laboratories, Inc.: UL 508 (Industrial Control Equipment)
• Canadian Standards Association: CSA C22.2 No. 142, (Process Control
Equipment)
• Factory Mutual Research: Approval Standard Class Number 3611
CE mark
The SIMATIC S7-300 product series conforms to the requirements and safety
specifications of following EU directives:
• EU directive 73/23/EWE "Low-voltage directive"
•
EU directive 89/336/EEC "EMC directive"
C tick mark
The SIMATIC S7-300 product series is compliant with AS/NZS 2064 (Australia).
S7-300 Programmable Controller Hardware and Installation
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